Road Bike

Glass Slipper
Shoe Sale

Mountain Bike

What's New?

Is it New Bike Time? Always!
05/22/19- Don't waste another nice day on impulse power when you could be riding at Warp 9. Chain Reaction features the very best bikes from Trek & Electra, as well as the highest-quality travel bikes from Bike Friday. Road, Mountain, Hybrid, Electric assist, Kids... we've got them all. Probably the best selection in a single location you'll find anywhere on the peninsula too.
Got a bike that needs repairs?
We can handle that! If you purchased your bike from us, remember that you can bring it in anytime, without calling ahead, for minor on-the-spot adjustments of brakes, gears and wheels (at no charge; this is included with any bike purchased from us). For flat tires, again, no appointment needed. Where possible we try and do flat tires while you wait, but there will be times that's not possible. At most you will be leaving your bike overnight. For normal (bigger) repairs, calling ahead to schedule an appointment might make sense because the repair backlog at better shops sometimes goes from overnight to two weeks in the blink of an eye!
It's E-Bike time at Chain Reaction! Test-ride an E-Bike and win! We have scratcher cards available for everyone who test-rides one of our awesome E-Bikes. Everyone wins something. Could be a water bottle, flashing safety lights or, $200 off any E-Bike. E-Bikes are the latest thing; find out why! Commute to the office without needing a shower, bring home the groceries (even if you live on top of a hill!) or keep up with your obsessive-cyclist partner. Prices start at just $1299 (Oyama folding E-bike) up to the incredible Trek Super Commuter 8 at $5199.

Disc Brakes for Road Bikes- Making the right choice

Disc brakes are the latest thing for road bikes. But are they the right choice for you? We discuss the trade-offs including benefits, cost, added weight and maintenance requirements.

Just a few of the bikes we sell. One of them is just right for you!

Trek CrossRip+
$3,799.99 $4,199.99 10% Savings
Key features - Bosch Performance Speed mid-drive system with long-range ...
Trek Dual Sport+
$2,199.99 $2,899.99 24% Savings
DS Series is the ultimate hybrid: part refined city bike, part adventurous ...
Trek Roscoe 8
$1,439.99 $1,539.99 6% Savings
Roscoe 8 is a trail hardtail for anyone looking to have some serious fun ou...
Trek Marlin 6 Women's
$579.99 $629.99 8% Savings
Marlin 6 Women's is a quality introductory women's cross country mountain b...
Trek Dual Sport 2
$609.99 $659.99 8% Savings
Dual Sport 2 is a go-anywhere hybrid bike that performs on a variety of sur...
Trek Checkpoint AL 4
$1,439.99 $1,539.99 6% Savings
Checkpoint AL 4 is an ideal entry point to the world of gravel riding. It's...
Trek Checkpoint ALR 5
$1,899.99 $2,099.99 10% Savings
Checkpoint ALR 5 is the best value gravel bike in the lineup. It's a high-q...
Trek Dual Sport 3
$749.99 $799.99 6% Savings
Dual Sport 3 is a high-performance hybrid bike with upgraded components tha...
Trek Dual Sport 4
$1,059.99 $1,159.99 9% Savings
Dual Sport 4 is the highest-performance hybrid bike in the lineup. Of all D...
Trek Marlin 5
$479.99 $519.99 8% Savings
- Ride the fastest wheel that fits with Smart Wheel Size - Ride-tuned alum...
Trek Madone SLR 6 Disc
$5,899.99 - $6,399.99 $6,299.99 - $6,799.99 Up To 13% Savings
Madone SLR 6 Disc brings the ultimate race bike platform to the next level ...
Trek Checkpoint AL 3
$1,099.99 $1,199.99 8% Savings
Checkpoint AL 3 may be the introductory gravel bike in the lineup, but it's...